Mommy!billie eilish x little!fem!reader
Warnings: age regression, fluff
Request: Finneas/Maggie babysitting little us while billies doing interviews (little baking cupcakes for mommy billie (we didn't take any cuz we wanted to eat them with Billie but she came late) )
Word count: 1,183"When will mommy come back?" You pout at Maggie and she coos at you softly rubbing your back. "She should be here in the next few hours or so." She replied and you hugged yourself. "Hey...why don't we bake Billie some cupcakes for when she comes back?" Maggie suggested and your face brightens up at the mention of baking and cupcakes.
"Wes Pweasie!" You said excitedly and immediately ran to the kitchen, peaches and shark running after you. Maggie and finneas follow after you and find you sitting at the kitchen counter waiting patiently. Maggie took out the ingredients and you and finneas were having a conversation. It was mainly you babbling to him but he didn't mind.
"Okay honey are you ready?" Maggie asked you and you nodded your head excitedly, getting up from the stool and running over to her. The two of you starting baking and she let you do most of the work because you begged her to. You wanted to tell mommy that you baked these mostly by yourself and for her to be proud of you. In reality though, Billie is always proud of her little baby. You were mixing everything while Maggie was preheating the oven and finneas was keeping the dogs from jumping up on the counter.
Once you were done mixing everything, Maggie helped you put them in cupcake molds and she put them in the oven. "Why don't we go ahead and make the homemade icing?" She said and you clapped your hands happily. Finneas said he was going to take the dogs for a walk while you and Maggie stayed and finished making the cupcakes. While he was out walking, he heard a ding go off in his pocket and pulled out his phone to see he received a message from Billie.
Billie: hey how's my baby?
Finneas: hey bils! She's great! She's making something special for you.
Billie: that's good I'm glad and oh no...I hope she's not making a mess.
Finneas: don't worry. Mom is with her so she's fine. I'm out walking shark and peaches right now. When will you be home? She's missing you tons.
Billie: awwww my baby :( I miss her too. I should be home in a hour or two. I didn't know they wanted to do multiple interviews in one day but here we are.
Finneas: oh okay. I'll tell her that. Be careful
Read at 5:34.
Back at the house, you and Maggie were done making the frosting and the cupcakes were done. They were cooled off enough so Maggie got you a plastic knife and you started putting the icing on the cupcakes. Soon enough, you were done and you were proud of yourself doing this, especially when you were in your headspace. But you were very determined to make these cupcakes and making them pretty for mommy.
Finneas came through the door with the dogs and unleashed them. "Hey guys! The cupcakes look great y/n!" He said as he went over to you and ruffled your hair a bit making you giggle. "Billie texted and said that she missed you a lot and that she will be home soon!" He said and you squealed at the mention of your mommy and her coming home soon. "Hey hon why don't you go ahead and have one of your cupcakes. It's getting late already." Maggie said and you pouted. "Buts I wan eats wif mommy..." you said sadly.
"Oh I know honey but you know how she is sometimes. She's very busy and we don't know exactly when she will be home and we don't want you to eat too late." She explained and you nodded sadly. The three of you ate a cupcake and y'all absolutely loved it. "Are you sure mom that y/n did this all by herself?" Finneas said as he leaned over and started tickling you making you giggle. "She sure did! I may have butt in here and there but she mainly did it!" She said happily, proud of how good these were and how focused you were.
An hour later billie came through the door and she heard feet running towards her. "Mommy mommy!" You said happily as you jumped in her arms and she caught you effortlessly. "My sweet little baby!" She exclaimed as she started leaving kisses all over your face making you squeal. She pulled away from your face and you buried your face in her neck, clinging onto her. She absolutely loved it when you were clingy and needing her.
"I made chu cupcakes mommy! All bys myselfs!" You said excitedly, bouncing in her arms. Billie let out a gasp and looked at you with love in her eyes. "You did!? Oh I bet they were so yummy baby." She said and you nodded then a pout appeared on your face. "I wans to eats wif chus but chu came homes late..." you said sadly and Billie kissed your forehead. "I'm so sorry angel. Mommy got so busy and had to stay a bit longer but I promise you we will eat one together tomorrow. I will even eat one now how's that?" She asked and your pout was turned into a big grin.
Billie walked into the living room to see her mom and brother sitting on the couch, cupcakes on the table in front of them. "Hey guys! Thank you so much for watching y/n. I really appreciate it and I'm sure y/n does too." Billie said as she puts you down so she could hug her family. "Oh it's no big deal. We had the best time. She was so good and even baked all by herself! I had to help some but it was very little." Maggie explained and Billie looked at you smiling wide.
"Yeah! They are really good and she was on her best behavior too." Finneas added and Billie couldn't be more prouder of you than right now. She hugged them goodbye and they left, leaving you and your mommy alone. "Now let me try these famous cupcakes." She said in a funny voice that made you giggle. She went to the kitchen and picked one up and ate it. She moaned a bit and licked her lips that was covered in icing. "It's amazing babygirl! I can't believe you made these all by yourself! What a smart baby." She praised you and you felt your cheeks heat up making Billie smile.
"So cute." She replied and you hid your face in your hands smiling. Billie got done eating her cupcake and went over to you and picked you up in her arms. For the rest of the night until bedtime, the two of you watched movies in y'all's matching onesies, while cuddled up to each other.
A/n: sorry for the bad ending lmao but anon I hope you enjoyed it and I hope the rest of y'all did too! I honestly wished more people wrote mommy!billie and little reader :( I've seen people do it on Wattpad but on here I'm like the only one who's done it really. Remember to stay hydrated and to rest! I love y'all :)